Machine learning assisted design of shape-programmable 3D kirigami metamaterials
Abstract
Kirigami-engineering has become an avenue for realizing multifunctional metamaterials that tap into the instability landscape of planar surfaces embedded with cuts. Recently, it has been shown that two-dimensional Kirigami motifs can unfurl a rich space of out-of-plane deformations, which are programmable and controllable across spatial scales. Notwithstanding Kirigami’s versatility, arriving at a cut layout that yields the desired functionality remains a challenge. Here, we introduce a comprehensive machine learning framework to shed light on the Kirigami design space and to rationally guide the design and control of Kirigami-based materials from the meta-atom to the metamaterial level. We employ a combination of clustering, tandem neural networks, and symbolic regression analyses to obtain Kirigami that fulfills specific design constraints and inform on their control and deployment. Our systematic approach is experimentally demonstrated by examining a variety of applications at different hierarchical levels, effectively providing a tool for the discovery of shape-shifting Kirigami metamaterials.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Sep 06, 2022
- Source ID
- 10.1038/s41524-022-00873-w
Entities
People
- Horacio D Espinosa
- Nibir Pathak
- Nicolas A. Alderete
Organizations
- Air Force Office of Scientific Research
- Army Research Office
- National Science Foundation